Steam-generator



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J. E. DAME. STEAM GENERATOR.

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Patented Apr. 24, 1894.

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No. 518,689.l

vvnNessEs z @wey-W 'NITED STATES NPATENT OFFICE.

JOHN E. DAME, OF BROOKLYN, NEIV YORK.

STEAM-G EN ERATO R.

SPECIFICATION forming part of Letters Patent No.`518,689, dated April 24, 1894.

Application led November 2l, 1893- Serial No. 491,599. (No model.)

To all whom it may concern.-

Be it known that I, JOHN E. DAME, a citizen of the United States, and a resident of Brooklyn, in the county of Kingsand State of New York, have invented certain :new and useful Improvements in Steam- Generators for Heating and otherPurposes, of which the following is a specification.

My invention is a steam generator to be employed especially in conjunction with a radiator and more particularly an individual radiator, in a room, for heating; but which is adapted to other general purposes.

The novel features of my generator and the advantages arising therefrom, are hereinafter fully described with reference to the accompanying drawings, in which Figure I. represents a vertical longitudinal section being indicated by thelines m Fig. II. Fig. II. represents a vertical cross section thereof on the line y y Fig. I. Fig. III. represents an end view thereof, omitting some of the parts. Fig. IV. represents a front View of a return bend, detached. Fig. V. represents a plan view of the apparatus with the jacket in horizontal section. Figs. VI. and VII. represent plan views of the parts composing the jacket, detached.

`Similar letters of reference indicate similar parts.

The letter A indicates a steam chamber; B a iiue or combustion chamberunder the steam -chamber C O two sections of a heating jacket each covering one side of the steam chamber; D return lues in both sections of the jacket and F a cross iiue over the steam chamber.

The ends A of the steam chamber are eX- tended downward as shown in Fig. I and constitute the ends of the lire chamber B; and -the sections C C, of the heating jacket are likewise extended as at C C (Fig. II) and constitute the sides of the iire chamber, the jacket sections being properly secured to both the ends and sides of the steam chamber, and also to the bottom B of the fire chamber. Each of the jacket sections O` C, is formed with inwardly projecting flanges O2, to create the desired return 'ues; these flanges terminating at points alternately within the opposite ends of the jacket as indicated by dotted lines in Fig. I; each is also formed with a transverse cap plate C3 (Figs. I, VI, and VII) l which overlap a transverse depression F' (Fig. I) in the top of the steam chamber, to create the desired cross line. At the junction of the 5 5 two cap plates C3, each has a semi-orifice, O4, to create an outlet C5 (Fig. I) from the cross flue. The lower member of the series of return iues D, of each of the jacket sections, communicates directly with the fire chamber 6o B; and the cross iiue F communicates with the upper members of said dues, so as to inter-connect the upper flues with each other.

The products of combustion from the tire chamber B, thus pass in circuitous course 6r through the jacket sections C C, to the outlet u C5, with the eect of heating the sides of the steam chamber A, for producing steam in. a rapid and economical manner. f

Through the fire chamber B, extends awa- 7o ter supply pipe G, with its ends projecting therefrom, both of which ends are connected to the steam chamber A, by means of return bends G', so as to permit a continuous circulation of the Water through the supply pipe and steam chamber. One of the ret-urn bends G carries a water feed valve I-I, which in this example is a check valve and the other carries a blow-od cock I.

In the bottom of the steam chamber A, is a 8o central .raised part or arch J, which extends the whole length thereof; and the point at which the water supply pipe G, extends through the re chamber is within this arch. The water supply pipe G is thus subjected to the action of the heat in the fire chamber within the arch J, whereby the effect of such heat is materially increased.4 The arch .I also serves to extend the heating surface afforded by the bottom of the steam chamber; and this 9o surface maybe further extended by a central web J upon the arch rising in the steam chamber; this web terminating within the opposite ends of the chamber so as to create at those points, openings Z for the free eirculation of water.

Under and parallel to the water supply pipe G in the fire chamber B is a perforated tube N constituting a gas burner; and under the bottom B of this chamberis an air space or loo chamber O, which is open at one end, O', (Fig. I.) and communicates with the re chamber at the other end, as through a hole O2 in its said bottom. When the burner N is used, it is preferably fitted with a mixer N of air and gas, together with a gas cock N2, like a Bunsen burner, While the `fire chamber B is itted with a screw plug P, for access to the burner.

In the operation ofthe apparatus when the gas issuing from the burner N, is ignited, the bottom and both sides of the steam chamber A, are at once enveloped by flame, and as soon as steam is formed and commences to escape from the chamber it is replaced by Water at the boiling point from the supply pipe Gr, through the return bends G', so that the measure of supplyis maintained Without interruption toA the generator of steam. The Water supply source may be a tank, to which may be conducted the condensation from the radiator. p f o yIt may be remarked that oil may be used in my apparatus instead of gas.

What I claim as new, and desire to secure by Letters Patent, is l fr 1. A steam generator comprising the stea chamber, the lire chamber thereunder, the heating jacket in sections each covering one side of the steam chamber, return dues in both sections of the jacket; thelower one of which iiues communicates with the fire chamber, a cross lue over the steamy chamber inter-connecting the upper return ues of the sections, and an outlet from the `cross flue, all y per return lues of the sections, and with a semi-orifice at lthe junction of the two cap plates, to createan outlet from kthe cross flue, all substantially as and for the purpose herein described. i

3. A steam generator comprising the steam chamber, tlie re chamber thereunder, the

water supply pipe extending through the fire chamber, all substantially as andfor the purak poseY herein described.

t `5. A steam generator comprising the steam chamben'with acentrai arch in the bottom extending the Whole length thereof, and a central web upon the arch with openings at itsk opposite ends, the re chamber under the steamy chamber, the kWater supply pipe elt-` tending through the re chamber at a point Within said arch of the steam chamber and return bends connecting both ends of the Water supply pipe to the steamchamber, all substantially as and for the purpose herein def scribed. 1 y, y n

6. `A steam generator comprising the steam chamber with a central arch in the bottom thereof, the lire chamber under the steam chamber, thewater supplyy pipe extending through the lire chamber at a point Within said arch ofthe steam chamber, return bends connecting both ends of thewater supply pipe s to the steam chamber, a burner consisting of a perforated tube, which extendsthrough the fire chamber under and parallely to the Water supply pipe, and an air space or chamber un-` der the y,fire chamber, open at one end and communicating with the tire chamber at the other end, all substantially as and' for the pur" pose herein described. i y

' Y p JOI-IN E. DAME.

Witnesses:

- PERGYR'. KLocK,

FRANCIS @.Bovvmt e, 

